JPH0325070A - Brake system for linear motor driven vehicle - Google Patents

Abstract

PURPOSE:To enlarge braking force and enable its optionally changeable setting by providing a reaction rail additionally with disc plates as well as a vehicle with disc brakes for clamping/pressing the disc plates. CONSTITUTION:Disc plates 4 are additionally provided at both width ends of a reaction rail 3, disc brakes 6 with pads 12 are fitted at both width ends of a corresponding vehicle side linear motor 22 through brackets 5, and the disk plates 4 are held by the disc brakes 6. The disc brakes 6 are operated to press the disc plates 4 through the pads 12, thus obtaining the braking force of a vehicle. The braking force can be thereby changed optionally by regulating hydraulic pressure and the like for operating the disc brakes 6. Powerful braking force can be thus generated regardless of sticking generated between wheels and the rail.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a brake system for a vehicle that is driven by a linear motor.

[Conventional technology]

FIG. 4 shows a general brake system installed in a conventional rear-air motor driven vehicle.

? A near-motor vehicle runs by the interaction force between the linear motor 2 installed on the vehicle's bogie side and the rear axle rail 3 installed on the ground side G by means of a mounting base 9K. The structure shown is often used. In this method, a disc rotor l1 is fixed to a part of an axle 10, and a disc brake 6 installed in a part of the truck is operated to clamp and press the disc rotor 11 through a pad 12 of the disc brake 6. Then, a braking torque is applied to the traveling wheel 7 integrated with the axle 10 and the sliding axle lO, and the braking force is generated by the adhesion generated between the tread of the wheel 7 that is decelerated or stopped by this K and the rail 8. This is what you get.

The maximum braking force (Fmax) using this method is
The limit was the product μ●R of the weight κ and the adhesive coefficient μ between the wheels 7 and the rails 8. Therefore, especially when braking or sudden stopping is required on a descending trajectory, or when rain
The running wheels 7 often skid due to the influence of such factors, and a part of the wheel tread along with the rail 8 wears abnormally, causing the optimum tread shape to collapse, requiring frequent replacement or grinding of the wheel 7. There were various problems such as.

[Problem to be solved by the invention]

As explained in the "Prior Art" section above, the braking force of the conventional brake system of a linear motor-driven vehicle is
This is obtained by adhesion between the wheels and the rails, and not only is the maximum braking force weak, slips often occur between the wheels and the rails due to external disturbances (e.g. rain, snow, etc.), and abnormalities on the wheel treads. This caused wear and rail wavy wear. Therefore, in order to prevent such slippage, an anti-skid brake system, an electromagnetic adsorption rail brake, etc. are attached in combination to improve safety.

However, with such a brake system, in addition to the complexity of the control system, there are problems such as component failure and battery voltage drop in the case of electromagnetic attraction rail brakes, so reliability cannot be guaranteed. There wasn't. The present invention is proposed to address these problems κ.

[Means to solve the problem]

The present invention provides an I/L motor that travels by the interaction κ between an axion rail installed on the ground side or a linear motor installed on the vehicle side.
J Regarding the brake system of near motor driven vehicles,
The vehicle includes a disc plate attached to the reaction rail, and a disc brake provided on the vehicle to support and press the disc plate.

[Effect]

In the present invention, the required braking force can be obtained by pinching and pressing a disc plate attached to a reaction rail laid on the ground side using a disc brake of the vehicle. Therefore, it is now possible to brake and stop the vehicle regardless of the adhesion that occurs between the wheels and the rail. This solves the above-mentioned problems such as slip and wear of the wheel tread, and also makes it possible to generate strong braking force.

〔Example〕

A first embodiment of the present invention will be described with reference to FIG.

In this embodiment, a linear motor-driven vehicle has a linear motor 2 suspended from the lower end of a bogie 1 of a running vehicle and a reaction rail 3 laid on the ground side G, and the linear motor-driven vehicle drives the vehicle by the moving magnetic field of the reaction rail 3. Disk plates 4 are attached to both width ends of the reaction rail 3, and disk brakes 6 with pads 12 attached via brackets 5 are attached to both width ends of the corresponding vehicle-side IJ near motor 2. The disc brake 6 clamps the disc plate 4. In Fig. 1, lO is the axle to which the wheel 7 is fixed, 8 is the rail, and 9 is the axle to which the wheel 7 is fixed.
is the mounting base of the reaction rail 3.

In this embodiment, the disc brake 6 clamps the disc plate 4, operates the disc brake 6, and presses the disc plate 4 through the attached pad 12, thereby obtaining braking force for the vehicle. . Therefore, braking. The force can be changed arbitrarily by adjusting the oil pressure for operating the disc brake 6, etc.

Therefore, in this embodiment, a strong braking force can be generated regardless of the adhesion that occurs between the wheels and the rail, and the braking force can be set arbitrarily. ! Ta,
There is no occurrence of slippage, slipping, wear, etc. on the wheel tread.

Furthermore, the structure is simple, maintenance inspection and repair are easy, and reliability is improved.

In this embodiment, the disc plate 4 is provided at both width ends of the reaction rail 3. For example, the disc plate 4 may be fixed to the mounting base 9 of the reaction rail 3 via a bracket, etc. The position attached to the rail 3 can be changed.

A second embodiment of the present invention will be described with reference to FIGS. 2 and 3.

The vehicle side of this embodiment is the same as that of the first embodiment and is not shown in the drawings, but the reaction rail side was constructed as follows to form a branch part of the track.

That is, it has the same structure as the reaction rail shown in FIG.
(see figure), two movable reaction rails 20 are installed to connect the rear axis rails 4', 4''.On each movable rear axis rail 20, there is a disc plate 3 of the rear axis line 4', 4''. A disk plate 21 corresponding to ', 3'κ is attached. One end of each movable reaction rail is connected to a pin 22 and a thrust plate 2.
3, it is attached to the reaction rail 4' which can swing freely in the horizontal direction, and the other end is inserted into the horizontal dovetail groove 22 of the reaction rail 4'' to fix it in the vertical direction. The structure is such that the movable rear axis rail 20 can be converted by swinging the movable rear axis rail 20 by each converter 24 in place of the pin 22.

The present embodiment is constructed as described above, and the movable reaction rail 20 is horizontally swung by the converter 24, and as shown in FIG. By inserting it into the dovetail groove 22 of `` and retracting the other movable rear axis rail, it is possible to change the track using a branch section having a structure similar to that of a normal railway track.

〔Effect of the invention〕

The present invention can have the following effects.

(1) Since braking is performed by a disc brake on the vehicle side and a disc plate attached to the rear axle rail on the ground side, the braking force can be increased and can be set variably, ensuring reliable braking. Braking time (regular distance) can be shortened.

(2) Since the structure of the brake system is simple, maintenance, inspection and repair are easy and reliability is high.

(3) Since it does not rely on the adhesion that occurs between the wheels and the rail, the wheels will not slip and the braking force will not decrease.
Furthermore, the shape of the wheel tread can be maintained.

(4) A conventional railway branching device can be used at the branching point.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a first embodiment of the present invention, FIG. 2 is a plan view of a rear axilon rail at a branching section according to a second embodiment of the present invention, and FIG. 3 is a of FIG. -A sectional view, FIG. 4 is an explanatory diagram of a brake system installed in a conventional linear motor driven vehicle. 1... Bogie, 2... Linear motor 3...
Rear axillon rail, 4...disc plate, 6...disc brake, 8...rail, 10...axle, 4', 4"...
・Reaction rail, 20...movable reactor S/-I
rail, 21... disc plate, 22...
Pin, 23... Thrust plate, 24... Converter. 5... Bracket, 7... Traveling wheel, 12... Pad,

Claims (1)

[Claims] In a brake system for a linear motor-driven vehicle that travels by interaction between a reaction rail laid on the ground side and a linear motor provided on the vehicle side, the brake system includes a disc plate attached to the reaction rail and a disc plate provided on the vehicle. A brake system for a linear motor-driven vehicle characterized by being equipped with a disc brake that clamps and presses.